Okay we are going to use of pressure cooker. Pressure cookers are perfectly safe. You can take a cheaper cut of meat and make it melt in your mouth good in a short period of time. They produce a much better end product than crock pots and they are not left at home unattended. Usually a 2 quart cooker will handle any needs you have. They are also easier and quicker than the great big ones.
Roast - whatever cut you like
Carrots 4 to 6 - depends on how well you like carrots
Potatoes 6 to 8 - the small whole ones work best but you can use canned ones, or regular white potatoes.
If you are using can potatoes don't put them in until everything is cooked. Then once
you take the lid off for the final time - add the potatoes and leave the pot on the burner until they are warmed through.
1 Stick Butter
In the pressure cooker - melt one stick of butter. Then add the roast and sear all sides till brown. Pick up the roast and add the grate then add water - the amount will depend on the size of your roast and the pressure cooker. The directions that come with your cooker will tell you how much water to add. Put on the top and turn heat on high until the cooker starts to "spit". Then turn the heat down to medium so the the cooker spits regularly. All this information will be in your individual pressure cooker instructions. A regular 2 pound roast takes about 30 minutes to cook.
Take cooker off the stove and run cold water over it until the pressure releases. Open the top carefully and add the cut up onions, carrots and potatoes. Add salt and pepper to taste. Add water as needed. Put top back on and bring the cooker back up to the cooking stage. Cook another 20 minutes.
Take cooker off the stove and run cold water over it until the pressure releases. Serve over rice. If you use bag rice you can cook it in the liquid left in the cooker.
You can also take the pot liquor (water left in the pot) and make a gravy with it. Mix 2 tablespoons flour in one cup of very cold water. Stir until well mixed. Set aside. Take 2 cups of pot liquor and put in a saucepan and bring to a boil. Add the flour mixture and immediately take off the heat. Stir until thickened. Add salt and pepper to taste.